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Finding the Fourth Proportional to 661,696.30, 913,103.04 and 367,330.92

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Solution

The fourth proportional to 661,696.30, 913,103.04 and 367,330.92 is: 506,895.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,696.30 : 913,103.04 = 367,330.92 : x
  2. Step 2: Convert to fraction form
    661,696.30/913,103.04 = 367,330.92/x
  3. Step 3: Cross multiply
    661,696.30x = 913,103.04 × 367,330.92
  4. Step 4: Simplify right side
    661,696.30x = 335,410,979,738.00
  5. Step 5: Solve for x
    x = 335,410,979,738.00/661,696.30
  6. Step 6: Final answer
    x = 506,895.66

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.